Abstract:
An LED lamp has an envelope that includes a globe (30) and a case (50), an interior space of the envelope being divided in two by a mount (20) closing an opening of the globe (30), the lamp containing, in a globe (30) side of the interior space, an LED and, in a case (50) side of the interior space, a circuit unit for causing the LED to emit light. The LED is thermally connected to the mount (20), and the mount (20) and the case (50) are joined to the globe (30) such that, during light emission, at least as much heat from the LED is propagated from the mount (20) to the globe (30) as from the mount (20) to the case (50).
Abstract:
PROBLEM TO BE SOLVED: To restrain trouble that may arise due to the eccentric center of gravity of a lamp.SOLUTION: The lamp 100 is provided with a straight tube 200, an LED module 300 fitted in the straight tube 200, and a holding part 263 holding the LED module 300 in the straight tube 200 so that a position P1 of the center of gravity of the lamp 100 projected on a YZ plane crossing a tube axis of the straight tube 200 is to be nearly the same as that of the tube axis of the straight tube 200.
Abstract:
PROBLEM TO BE SOLVED: To provide a lamp using semiconductor light-emitting elements such as light-emitting diodes (LED) which are easily assembled.SOLUTION: A long lamp 1 equipped with an LED module 40, is provided with receiving pins 31, 32 fitted at one end part in a length direction of the lamp 1, a grounding pin 33 fitted at the other end part, a long base 20 retaining the LED module 40, and a long translucent cover 10 attached to the base 20 and structured to cover the LED module 40. The base 20 includes a first retaining member 22 fitted in erection at an end part in the length direction of the base 20 for retaining the receiving pins 31, 32, and a second retaining member 23 set in erection at the other end part in the length direction of the base 20 for retaining the grounding pin.
Abstract:
PROBLEM TO BE SOLVED: To solve such a problem that an electrode formed on the mounting surface of an LED light-emitting element and the LED light-emitting element itself reduce the light extraction efficiency.SOLUTION: The LED light-emitting module comprises a substrate 11 having transparency, an LED light-emitting element 10 connected electrically with a wiring pattern on the LED light-emitting element mounting surface of the substrate 11, and a pair of electrodes 12 arranged on the LED light-emitting element mounting surface of the substrate 11 so as to be spaced apart from the LED light-emitting element 10. The substrate 11 has a first reflection part 13 formed on the back surface of the LED light-emitting element mounting surface, and a second reflection part 23 interposed between the LED light-emitting element 10 and the substrate 11 or between the electrode 12 and the substrate 11 on the mounting surface of the LED light-emitting element.
Abstract:
PROBLEM TO BE SOLVED: To prevent trouble that may arise when stress is applied to an outer tube.SOLUTION: A lamp 100 is provided with an outer tube 200, an LED module 300 having a substrate 310 and LEDs 321 mounted on the substrate 310, and a hanging part 520 fitted inside the outer tube 200 for hanging the LED module 300 in the outer tube 200.
Abstract:
PROBLEM TO BE SOLVED: To provide a lamp capable of attaining easy manufacturing.SOLUTION: The lamp 1 is provided with a light-emitting section, a long tube 40 for housing the light-emitting section, and a pair of lids 50, 60 which are respectively installed on the both end parts in longitudinal direction of the tube 40. Then, the first lid 60 has a main part 52 formed in bottomed cylindrical shape and a sub part 53 which is formed in cylindrical shape and extended from the inside of the cylinder of the main part 52. The sub part 53 consists of a first portion 53a which has an outline dimension of the inner dimension or less of the surface orthogonal to the center axis of the tube 40 at the end part of the tube 40 and a second portion 53b having an outline dimension larger than the inner dimension of the surface orthogonal to the center axis of the tube 40 at the end part of the tube 40. It is possible that the second portion 53b is elastic deformed so that it may be smaller than the inner dimension of the tube 40, and in the state the second portion 53b is elastic deformed, it is inserted into the tube 40, and by a restoration force, pressure-contacts the inner circumference of the tube 40, thereby, the first lid 50 and the tube 40 are connected.
Abstract:
PROBLEM TO BE SOLVED: To provide a lamp which is not lighted up in case the outer tube is damaged or so.SOLUTION: The lamp 100 is provided with a base 201a installed at the end part of an outer tube 200 and an electric wire 220 which is arranged at the front surface of the outer tube 200 and stops supply of power to an LED module 300 when disconnected. The electric wire 220 is arranged at least in the vicinity of the base 201a.
Abstract:
PROBLEM TO BE SOLVED: To easily integrate a cover and a base while restraining generation of distortion at a part for the cover and the base to be engaged.SOLUTION: The cover 200 includes a bent part 210 with an end part in a lateral direction of the cover 200 bent into inside the cover 200. An engaging part 410 for engaging with the bent part 210 in linear contact in a longitudinal direction of the cover 200 is formed at an end part in a lateral direction of the base 400 to retain the cover 200.
Abstract:
PROBLEM TO BE SOLVED: To efficiently radiate heat generated in semiconductor light-emitting elements.SOLUTION: A lamp is provided with a case 110, and a substrate 310 with an LED 321 mounted. The case 110 is structured of a first case 200 and a second case 400. The substrate 310 is loaded on a second case 400. The second case 400 is made of a long plastically deformed metal plate and structured of a material having larger thermal conductivity than that of the substrate 310.
Abstract:
PROBLEM TO BE SOLVED: To easily fix a substrate to a base, which is used to emit light of semiconductor light-emitting elements.SOLUTION: A lamp 100 is provided with a base 201a, and a substrate 510 with rectifier circuit elements 530 used for light emission of LEDs 321 fitted. The base 201a is so structured to be elastically deformed, and includes an engagement part 220 engaged with an end part of the substrate 510. The substrate 510 is fixed to the base 201a by engagement of the end part of the substrate 510 and the engagement part 220.